FAA orders · airworthiness directive · current

97-25-01: Outflow/Safety Valve

FAA order 97-25-01 is an airworthiness directive in force since January 11, 1998. The FAA's subject line: Outflow/Safety Valve. It names Beechcraft A100, Beechcraft A200, Beechcraft B100, Beechcraft B200 King Air B200, Beechcraft B300 King Air 350, Beechcraft C90 King Air C90: about 2,211 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product: Aircraft
Makes: Textron Aviation Inc.
Models: 100, 200, 2000, 200C, 200CT, 200T, 300, 58P, 58PA, 60, 65-90, A100, A100-1 (U-21J), A200 (C-12A), A200 (C-12C), A200C (UC-12B), A200CT (C-12D), A200CT (C-12F), A200CT (FWC-12D), A200CT (RC-12D), A200CT (RC-12G), A200CT (RC-12H), A200CT (RC-12K), A60, B100, B200, B200C, B200C (C-12F), B200C (C-12R), B200C (UC-12F), B200C (UC-12M), B200CT, B300, B300C (C-12W), B60, B90, C90, C90A, E90, F90, H90
On this site: Beechcraft A100 15 registered
Beechcraft A200 34 registered
Beechcraft B100 58 registered
Beechcraft B200 King Air B200 714 registered
Beechcraft B300 King Air 350 783 registered
Beechcraft C90 King Air C90 607 registered

Dates and paperwork

In force since: January 11, 1998
Published: December 3, 1997
Docket: 97-CE-33-AD
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

This amendment adopts a new airworthiness directive (AD) that applies to all Raytheon Aircraft Company (Raytheon) 58, 60, 90, 100, 200, and 300 series and Model 2000 airplanes (formerly referred to as Beech 58, 60, 90, 100, 200, and 300 series and Beech Models 65-90 and 2000 airplanes). This AD requires replacing certain AlliedSignal Aerospace outflow/safety valves in the pressurization system with new or serviceable valves. The AD results from a report of cracking and consequent failure of the affected outflow safety valves in the pressurization system. Investigation has revealed problems during the manufacturing process of certain Allied Signal outflow/safety valves. The actions specified by this AD are intended to prevent outflow/safety valve cracking and consequent failure, which could result in rapid decompression of the airplane.

The order itself the regulatory text, as published

Show the full text (8,391 characters)

97-25-01  RAYTHEON AIRCRAFT COMPANY (formerly Beech Aircraft Corporation): Amendment 39-10224; Docket No. 97-CE-33-AD. 

	Applicability:  58, 60, 90, 100, 200, and 300 series and Model 2000 airplanes (all serial numbers), certificated in any category.  The following charts present airplane models and serial numbers that are equipped with AlliedSignal Aerospace outflow safety valves as referenced in either AlliedSignal Aerospace Service Bulletin 103570-21-4012, Revision 1, dated May 30, 1995; Service Bulletin 103648-21-4022, Revision 1, dated May 30, 1995; or Service Bulletin 103598-21- 4024, Revision 1, dated May 30, 1995. 

	-  The airplanes presented in the charts are affected by paragraph (a) of this AD. 

	-  All airplanes are affected by paragraph (b) of this AD. 


Models
Serial Numbers
58P and 58PA
TJ-3 through TJ-497.
60 and A60 
P-3 through P-246 with Kit No. 60-5024-1 S incorporated.
B60
P-247 through P-307 with Kit No.
60-5024-3 S incorporated.
B60
P-308through P-596.
65-90, A90, B90, C90, and C90A.
LJ-1 through LJ-1302.
E90
LW-1 through LW-347.
F90
LA-2 through LA-236.
100 and A100
B-1 through B-94, B-100 through B-204,
and B-206 through B-247.
B100 
BE-1 through BE-137.
200 and B200
BB-2, and BB-6 through BB-1419.
200C and B200C 
BL-1 through BL-23, BL-25 through BL-57,
and BL-61 through BL-137.
200T  
BT-1 through BT-32.
200CT and B200CT
BN-1 through BN-4
300
FA-1 through FA-220, and FF-1through FF-19.
B300 
FL-1 through FL-72.
B300C
FM-1, FM-2, and FM-3.
2000 
NC-4 through NC-53.
H90 (T44A) 
LL-1 through LL-61.
A100 (U-21F)
B-95 through B-99.
A100-1 (U21J)
BB-3, BB-4, and BB-5.
A200 (C12-A/C)
BD-1 through BD-30, and BC-1through BC-75.
A200 (UC-12B)
BJ-1 through BJ-66.
A200CT (C-12D)
BP-1, BP-22, and BP-24 through BP-51.
A200CT (FWC-12D)
BP-7 through BP-11.
A200CT (RC-12D)
GR-1 through GR-13.
A200CT (C-12F)
BP-52 through BP-63.
A200CT (RC-12G)
FC-1, FC-2, and FC-3.
A200CT (RC-12H)GR-14 through GR-19.
A200CT (RC-12K)
FE-1 through FE-9.
B200C (C-12F)
BL-73 through BL-112, and BL-118 through BL-123.
B200C (UC-12F)
BU-1 through BU-10.
B200C (RC-12F)
BU-11 and BU-12.
B200C (UC-12M)
BV-1 through BV-10.
B200C (RC-12M)
BV-11 and BV-12.
B200C (C-12F)
BP-64 through BP-71.
B200CT (FWC-12D)
FG-1 and FG-2.
 		



Applicable Outflow Safety Valves With Applicable Airplane Models  
Valve Model
Valve serial numbers
Airplane Models
Installed In
103570-26
80-223, 80-225 through 80-227, 
80-229, and 80-230.
2000.
103598-2
16-808, 39-2434, 45-747,
87-1600, and 116-1238.
60(A), C90, and E90.
103598-15
128-11.
58P.
103648-1
11-4913 through 11-4916,
12-3832, 20-3006, 22-4950,
12-3912, 30-3076, 39-2412,
41-4918, 41-4919, 61-3300,
101-4920, 101-4922 through 101-4924, 
101-4926 through 101-4931, 101-4933,
101-4935, 101-4936,
101-4938, 101-4940,
101-4941, 121-3683,
121-4942, 129-2904, and 129-2920.
60, 90, A90, B90, C90,
E90, 100, A100, andB100.
103648-3
21-1827, 71-1828, 71-1829,
and 120-1823 through
101-1826.
58P.
103648-4
10-4664 through 10-4667,
11-223, 11-3093, 11-3161,
11-4717 through 11-4721,
12-795, 12-3641, 12-4760,
15-4368, 21-3182, 21-3208,
21-4722 through 21-4728,
21-4730, 21-4732, 22-3688,
22-3706, 22-3733, 22-3736,
24-4232, 24-4241, 24-4252,
24-4255, 27-4498, 32-3756,
32-3777, 32-4761, 32-4762,
37-1087, 37-1113, 38-2417,
41-3227, 41-3237, 41-3261,
41-3274, 41-4733, 41-4734,
42-1475, 42-3830, 42-3838,
42-3840, 42-3850, 42-3851,
42-3877, 42-3882, 42-3883,
42-3890, 48-1557, 49-181,
50-2804, 51-4735, 51-4736,
59-2090, 60-2896, 61-3301,
61-4737, 61-4738, 62-3907,
62-3968, 62-3981, 62-2155,
70-2960, 71-4739, 71-4740,
72-3988, 72-3991, 72-3999,
74-4288, 74-4289, 74-4293,
74-4296, 76-4441, 77-4556,
77-4567, 79-2189, 79-2218,
79-2223, 81-3415, 87-1197,
87-1585, 89-2288, 95-4404,
99-2358, 99-2365, 99-2369,
99-2385, 99-2403, 99-2430,
104-4336, 107-1297,
110-3033, 111-3462,
111-3482, 111-3515,
111-4755, 116-4468,
116-4470, 119-2507,
119-2520, 120-3043,
120-3048, 120-3057,
120-4687 through 
120-4692, 121-3562,
126-4490, 128-1776,
and 129-4639.
200.
103648-5
10-325, 12-760, 12-799,
20-236, 21-1734, 21-1741
through 21-1744, 21-1746,
40-365, 21-1762, 41-1763,
60-243, 61-605, 77-1590,
90-461, 100-1712 through
100-1718, 100-1720
through 100-1726, 100-1728
through 100-1731, 105-149,
105-285, 109-1613, 109-1620,
116-1488, 121-1764, 126-1502,
and 126-1511.
C90-1, C90A, and F90.
103648-6
101-1830, 101-1831, and 110-1822.
58P and 90.
103648-7
11-208, 14-1206, 17-2204,
21-2817, 21-2818, 21-2827,
21-2828, 22-2832, 23-1030,
23-1058, 24-1211, 24-1232,
25-1634, 30-2719, 31-346,
42-843, 51-397, 51-398,
51-409, 54-1253, 74-1320,
77-2349, 86-2136, 103-1129,
110-1171, 112-961,
112-1000, 113-1172,
113-1192, 114-1538,
118-2569, 119-2607,
119-2614, 101-2796 through 100-2806, 
and 100-2808 through 100-2815.
B200 and 300.
103648-13
12-410,12-464, 12-465, and
70-386 through 70-400.
300 and B300.

	NOTE 1:  The above outflow/safety valves are referenced in AlliedSignal Aerospace Service Bulletin 103570-21-4012, Revision 1, dated May 30, 1995; Service Bulletin 103648-21-4022, Revision 1, dated May 30, 1995; and Service Bulletin 103598-21-4024, Revision 1, dated May 30, 1995.  In addition, Beechcraft Service Bulletin 2484, Revision 1, dated October, 1995, references the AlliedSignal service bulletins. 

	NOTE 2:  This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD.  For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD.  The request should include an assessment of the effectof the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. 

	Compliance:  Required as indicated in the body of this AD, unless already accomplished. 

	To prevent outflow/safety valve cracking and consequent failure, which could result in rapid decompression of the airplane, accomplish the following: 

	(a)	For the airplanes referenced in the "Airplane Models and Serial Numbers That Are Equipped with Allied Signal Outflow Valves" table that is included in the "Applicability" section of this AD:  Within the next 4 months after the effective date of this AD, replace (with a new or serviceable valve) any outflow/safety valve that does not have one of the following: 

		(1)	The valve identification plate MOD RECORD stamped "PCA" (Poppet Change Accomplished); or 

		(2)	A valve with an inked ATD Quality Assurance "Functional Test(FT)" stamp that is dated June 1992, or later. 

	(b)	For all airplanes:  As of the effective date of this AD, no person may install on any affected airplane any outflow/safety valve that is referenced in the "Applicable Outflow Safety Valves With Applicable Airplane Models" table that is included in the "Applicability" section of this AD. 

	(c)	Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. 

	(d)	An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Wichita Aircraft Certification Office (ACO), 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209.  The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita ACO. 

	NOTE 3:  Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita ACO. 

	(e)	All persons affected by this directive may obtain copies of the documents referred to herein upon request to AlliedSignal Aerospace, Technical Publications, Department 65-70, P.O. Box 52170, Phoenix, Arizona 85072-2170; or may examine these documents at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. 

	(f)	This amendment (39-10224) becomes effective on January 11, 1998.

Related safety bulletins advice on the same designs, not orders

2026-09-102026-16 · Elevator Control System

2015-04-20CE-15-15 · Empennage Horizontal & Vertical Stabilizer Structure

2013-08-30CE-10-34R2 · Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08

2013-08-20CE-10-34R1 · Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08

2012-06-19CE-12-36 · Flight Controls: Aileron

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 30, 2026. Connections as data: /graph/directive/97-25-01.json · aircraft systems.